Although she has appeared in Ironman 2 as well as a significant role in the Avengers, Black Widow has not had much information leaked on her background. I figured that now would be a great time to briefly talk about her role in comics as well as media.
Natasha Romanov was abandoned as a child and raised by a Russian soldier. She learned ballet at a young age and joined the KGB when she was of age. She advanced as an elite intelligence operative. Her dance and training gained her a brutal but graceful fighting style that is accentuated by classified government enhancements. This superspy eventually became a top member of S.H.I.E.L.D. and has been involved on more than one occasion with Clint Barton (Hawkeye).
The Black Widow is a master martial artist, an expert markswoman, a natural actress, an infamous seductress, and a gifted veteran spy. She often carries multiple small explosives, throwing knives, surveillance items, a high tech taser, and firearms.
Other than her live action appearances in the current Marvel Cinematic Universe, Black Widow was originally going to be played by Angela Bowie in the 1970s. The planned Daredevil and Black Widow series never made it past development, but there are pictures online. There also have been multiple failed attempts throughout the years to give her a solo movie.
She has had a fair share of animated appearances as well, including roles in: The Superhero Squad Show, Ironman Armored Adventures, Ultimate Avengers 1 and 2, The Marvel Superheroes, and The Avengers Earth’s Mightiest Heroes.
Anything else that you would like to add on the character, please feel free in the comments below. Black Widow (Natasha Romanov) is played by Scarlett Johansson in The Avengers movie.